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Finding the Fourth Proportional to 539,842.41, 744,945.01 and 298,122.86

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Solution

The fourth proportional to 539,842.41, 744,945.01 and 298,122.86 is: 411,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,842.41 : 744,945.01 = 298,122.86 : x
  2. Step 2: Convert to fraction form
    539,842.41/744,945.01 = 298,122.86/x
  3. Step 3: Cross multiply
    539,842.41x = 744,945.01 × 298,122.86
  4. Step 4: Simplify right side
    539,842.41x = 222,085,138,040.98
  5. Step 5: Solve for x
    x = 222,085,138,040.98/539,842.41
  6. Step 6: Final answer
    x = 411,388.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.